We designed a model-based analysis to predict the occurrence of population patterns in distributed spiking activity. Using a maximum entropy principle with a Markovian assumption, we obtain a model that accounts for both spatial and temporal pairwise correlations among neurons. This model is tested on data generated with a Glauber spin-glass system and is shown to correctly predict the occurren...

It is widely believed that form and motion are analysed separately in mammalian visual systems. Form is confined within a stream that projects ventrally from V1 to the inferotemporal cortex, and motion within a stream that projects more dorsally, to the posterior parietal cortex [1] [2] [3] [4] [5] [6] [7]. Current descriptions suggest that there is little contact between the two streams until ...

Event-related potentials were recorded during a mental rotation task. Subjects were shown pairs of letter-like shapes and were asked to make a parity judgment. The shape on the left was always in its canonical position and the shape on the right could either be in its canonical position or be a mirror image. Two variables were manipulated for the shape on the right. First, it could appear at di...

object identity representation in the human parietal cortex. J. Neurosci. 36, 1607–1619 12. Vaziri-Pashkam, M. and Xu, Y. (2017) Goal-directed visual processing differentially impacts human ventral and dorsal visual representations. J. Neurosci. 37, 8767–8782

Expertise is a ubiquitous pre-requisite for modern life, but little is known about what neural mechanisms underpin the acquisition or employment of such skills. Recent evidence from functional magnetic imaging studies suggests that a network of frontal and parietal regions plays a crucial role.

Previous work has shown that both declarative and non-declarative strategies can be engaged in probabilistic classification learning. With respect to the neural correlates of these strategies, earlier studies have focused on the classification process itself. In the present experiment, we asked whether the feedback for classification performance is processed differently by declarative and non-d...

The current study investigates how human infants process and interpret human movement. Neural correlates to the perception of biological motion by 8-month-old infants were assessed. Analysis of event-related potentials (ERPs) resulting from the passive viewing of upright and inverted point-light displays (PLDs) depicting human movement indicated a larger positive amplitude in right parietal reg...